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<title>Class: ObjectBoundary</title>
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<h1>Class: ObjectBoundary</h1>
<h2 class='summaryURI'>http://www.ifomis.org/bfo/1.1/snap#ObjectBoundary</h2>
<h2>Asserted Class Hierarchy</h2>
<div class='codebox' id='asserted_class_hierarchy'>
<ul class='minihierarchy'>
<li class='expandable'> +
<a href="Entity___165907323.html" title="http://www.ifomis.org/bfo/1.1#Entity">Entity</a></li><ul class='minihierarchy'>
<li class='expandable'> +
<a href="Continuant___87152012.html" title="http://www.ifomis.org/bfo/1.1/snap#Continuant">Continuant</a></li><ul class='minihierarchy'>
<li class='expandable'> +
<a href="IndependentContinuant___2069123378.html" title="http://www.ifomis.org/bfo/1.1/snap#IndependentContinuant">IndependentContinuant</a></li><ul class='minihierarchy'>
<li><span class='active-entity'>ObjectBoundary</span></li><ul class='minihierarchy'>
</ul>
</ul>
</ul>
</ul>
</ul>
</div><!-- asserted class hierarchy -->
<h2>Annotations (5)</h2>
<div class='codebox' id='annotations_(5)'>
<ul>
<li>
<span class='annotation-uri'>comment:</span> <span class='literal'>"Comment: Boundaries are theoretically difficult entities to account for, however the intuitive notion of a physical boundary as a surface of some sort (whether inside or outside of a thing) will generally serve as a good guide for the use of this universal."</span> (string)</li>
<li>
<span class='annotation-uri'>comment:</span> <span class='literal'>"Definition: An independent continuant [snap:IndependentContinuant] that is a lower dimensional part of a spatial entity, normally a closed two-dimensional surface. Boundaries are those privileged parts of object [snap:Object] entities that exist at exactly the point where the object [snap:Object] is separated off from the rest of the existing entities in the world."</span> (string)</li>
<li>
<span class='annotation-uri'>comment:</span> <span class='literal'>"Examples: the surface of the skin, the surface of the earth, the surface of the interior of the stomach, the outer surface of a cell or cell wall"</span> (string)</li>
<li>
<span class='annotation-uri'>comment:</span> <span class='literal'>"Synonyms: substance boundary"</span> (string)</li>
<li>
<span class='annotation-uri'>label:</span> <span class='literal'>"object_boundary"</span> (string)</li>
</ul>
</div><!-- annotations (5) -->
<h2>Superclasses (1)</h2>
<div class='codebox' id='superclasses_(1)'>
<ul>
<li>
<a href="IndependentContinuant___2069123378.html" title="http://www.ifomis.org/bfo/1.1/snap#IndependentContinuant">IndependentContinuant</a></li>
</ul>
</div><!-- superclasses (1) -->
<h2>Disjoints (5)</h2>
<div class='codebox' id='disjoints_(5)'>
<a href="FiatObjectPart___-1625209779.html" title="http://www.ifomis.org/bfo/1.1/snap#FiatObjectPart">FiatObjectPart</a>, <a href="MaterialEntity___-2005217909.html" title="http://www.ifomis.org/bfo/1.1/snap#MaterialEntity">MaterialEntity</a>, <a href="Object___-1267021450.html" title="http://www.ifomis.org/bfo/1.1/snap#Object">Object</a>, <a href="ObjectAggregate___-1355835915.html" title="http://www.ifomis.org/bfo/1.1/snap#ObjectAggregate">ObjectAggregate</a>, <a href="Site___-1253066898.html" title="http://www.ifomis.org/bfo/1.1/snap#Site">Site</a></div><!-- disjoints (5) -->
<h2>Usage (1)</h2>
<div class='codebox' id='usage_(1)'>
<ul>
<li>
<a href="IndependentContinuant___2069123378.html" title="http://www.ifomis.org/bfo/1.1/snap#IndependentContinuant">IndependentContinuant</a> <span class='keyword'>≡</span> <a href="MaterialEntity___-2005217909.html" title="http://www.ifomis.org/bfo/1.1/snap#MaterialEntity">MaterialEntity</a> <span class='keyword'>or</span> <span class='active-entity'>ObjectBoundary</span> <span class='keyword'>or</span> <a href="Site___-1253066898.html" title="http://www.ifomis.org/bfo/1.1/snap#Site">Site</a></li>
</ul>
</div><!-- usage (1) -->
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